Router metrics change to use http1 cockroach db matcher

[ramr]

Router metrics change to use http1 cockroach db matcher instead of Http1Fast
for backward compatibility.

fixes bugz 1623632 ( https://bugzilla.redhat.com/show_bug.cgi?id=1623632 )

/cc @openshift/sig-network-edge

[pravisankar]

/lgtm

[ironcladlou]

Could this be unit tested?

[ironcladlou]

/lgtm

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ironcladlou, pravisankar, ramr

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[ramr]

/retest

[ramr]

@ironcladlou ack will add a unit test in a follow up PR. The metrics pieces have no unit tests currently.

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[ramr]

/retest

[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[ironcladlou]

/cherrypick release-3.11

[openshift-cherrypick-robot]

@ironcladlou: new pull request created: #21043

In response to this:

/cherrypick release-3.11

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